EAT 209 ext/ereg/regex/regcomp.c if (!EAT('|'))
EAT 355 ext/ereg/regex/regcomp.c if (EAT(',')) {
EAT 364 ext/ereg/regex/regcomp.c if (!EAT('}')) { /* error heuristics */
EAT 417 ext/ereg/regex/regcomp.c if (EAT('^')) {
EAT 525 ext/ereg/regex/regcomp.c if (EAT('*')) { /* implemented as +? */
EAT 533 ext/ereg/regex/regcomp.c if (EAT(',')) {
EAT 600 ext/ereg/regex/regcomp.c if (EAT('^'))
EAT 602 ext/ereg/regex/regcomp.c if (EAT(']'))
EAT 604 ext/ereg/regex/regcomp.c else if (EAT('-'))
EAT 608 ext/ereg/regex/regcomp.c if (EAT('-'))
EAT 703 ext/ereg/regex/regcomp.c if (EAT('-'))